... Abstract Asphaltenes precipitation is considered a formation damage problem, which can reduce the oil recovery factor. It fouls piping and surface installations, as well as cause serious flow assurance complications and decline oil well production. Therefore, researchers have shown an interest...

... that HF acid dissolves the clays to restore permeability without promoting nonsoluble fluorosilicates precipitation through reactions with aluminosilicates. Variations in mineralogy determine fluid performance and make customized fluid selection necessary. The high presence of feldspars requires more...

..., it is imperative for producers to adopt a proactive approach in the resolution of flow assurance challenges, namely hydrocarbon deposition, to ensure maximized production. flow assurance investment paraffin paraffin deposition Production Chemistry precipitation remediation chemical deliverability...

... due to various concentrations of asphaltene added, results of laboratory tests performed using pre-separated asphaltene contents from crude oil are showed, to be sure that the first stage (if we divide it into precipitation from liquid phase and deposition on pore surface) of depositing is passed, n...

... is saturated with a gas containing CO 2 , to evaluate the effect of solution conditions on the tendency and extent of the precipitation. The proposed simple method covers concentration for calcium cation concentration, or bicarbonate anion concentrations up to 10000 mg/L, temperatures up to 90°C, total ionic...

.... The results show that sodium silicate in high temperature and high salinity can self-generate white precipitation which can effectively block high permeability zone and or thief zone and expand sweep volume. The precipitation mass is related to modulus, temperature and aging time in high temperature; after...